Add emoji reaction detail status

app/serializers/rest/emoji_reaction_account_serializer.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class REST::EmojiReactionAccountSerializer < ActiveModel::Serializer
+  include RoutingHelper
+  include FormattingHelper
+
+  attributes :id, :name
+
+  attribute :url, if: :custom_emoji?
+  attribute :static_url, if: :custom_emoji?
+  attribute :domain, if: :custom_emoji?
+
+  belongs_to :account, serializer: REST::AccountSerializer
+
+  def id
+    object.id.to_s
+  end
+
+  def url
+    full_asset_url(object.custom_emoji.image.url)
+  end
+
+  def static_url
+    full_asset_url(object.custom_emoji.image.url(:static))
+  end
+
+  def domain
+    object.custom_emoji.domain
+  end
+
+  def custom_emoji?
+    object.custom_emoji.present?
+  end
+end